Question

plz help me plzzzzzzzz​

Answer 1

Because copper wire has high melting point and boiling point.

so that two wire can't touch externally.and save from short circuit.

Answer 2

a) Excellent Conductor of Electricity: Copper is an excellent conductor of electricity; no other metal can compete with it in terms of electrical conductivity. The wires made of this reddish metal are capable of carrying comparatively more electric current per diameter of wire.

b) Insulation

Most electrical wire is covered in a rubber or plastic coating called insulation.

c) Considering that, you are asking about immersed water heater then definitely there is a chance you get electric shock when you touch the water but the question is…. ... SO,this small amount of electric current leaks through water which may cause to get electric shock. To avoid this shock from water